MLA
W.W. Frerichs (New Orleans). A pair of ancient colored gentlemen. unknown. Robert Langmuir African American Photograph Collection. Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/269m37pvpj-cor.
APA, 6th edition
W.W. Frerichs (New Orleans). (unknown)[A pair of ancient colored gentlemen]. Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/269m37pvpj-cor.
Chicago
W.W. Frerichs (New Orleans), A pair of ancient colored gentlemen, unknown, Robert Langmuir African American Photograph Collection, Stuart A. Rose Manuscript, Archives, and Rare Book Library. https://digital.library.emory.edu/purl/269m37pvpj-cor.